package com.lyc.servlet.admin;

import com.lyc.dao.CountryInfoDAO;
import com.lyc.dao.imp.CountryInfoDAOImpl;
import com.lyc.entity.CountryInfo;

import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;

@WebServlet("/admin/country-update.let")
public class CountryUpdateServlet extends HttpServlet {

    private CountryInfoDAO dao = new CountryInfoDAOImpl();
    @Override
    protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
    	request.setCharacterEncoding("UTF-8");
    	response.reset();
        response.setContentType("application/json;charset=UTF-8");
        
        try {
        	//将前端传递过来的表单数据设置到实体对象中
        	//注意：如果实体属性是非String的，则需要进行转换
        	//注意：该步骤适当加入校验
        	CountryInfo e = new CountryInfo();
        	String code = request.getParameter("countryCode");
        	if(code == null || "".equals(code)) {
        		throw new ServletException("国家编码不能为空");
        	}
        	if(!code.matches("^\\w+$")) {
        		throw new ServletException("国家编码只能是字母");
        	}
            e.setCountryCode(request.getParameter("countryCode"));
            e.setCountryUri(request.getParameter("countryUri"));
            e.setCountryNameCn(request.getParameter("countryNameCn"));
            e.setCountryNameEn(request.getParameter("countryNameEn"));
            e.setCountryName(request.getParameter("countryName"));
        	
            try{
                dao.updateById(e);
                response.getWriter().print("{\"ok\":true}");
            }catch (Exception ex){
                throw new ServletException(ex.getMessage(), ex);
            }
        }catch(Exception e) {
        	response.getWriter().print("{\"ok\":false,\"msg\":\""+e.getMessage()+"\"}");
        }
        
        response.flushBuffer();
    }
}
